Deodorizer



MY'27, 11,952" c. H. MaoFARLAND DEODORIZER Filed Aug.` so, 1949 Y!TORNEYS Z sharks H. MacFarzand BY i Patented May 27, 1952 UNITED STATESPATENT.. OFFICEiy DEoDomzER Charles H. MacFarland, Cleveland, Ohio,assignor to The Scott & Fetzer Company, Cleveland, Y

Ohio, a corporation of Ohio Application August 30, 1949,` Serial No.113,138

6 Claims. .l

This invention relates to an air conditioner for vacuum cleaners andmore particularly to a device for supplying a vapor disinfectant and/ ordeodorizer to air within a portion of the cleaner through which the airpasses during operation of the cleaner.

The invention has for an object to provide a device which supplies anair conditioning vapor to the interior of the dust collecting chamber ofthe cleaner so that the air passing through the said chamber isconditioned during operation of the sweeper and so that contamination ofthe air by dirt collected in the chamber is prevented during intervalsbetween operations of the cleaner.

The invention has for a further object to pro vide an air conditioningdevice of simple and inexpensive construction that can be quickly andeasily recharged at any time without removing it from the cleaner.

With the above and other objects in view, the invention may be said tocomprise the air conditioning device as illustrated in the accompanyingdrawings hereinafter described, together with such variations andmodications thereof as will be apparent to one skilled in the art towhich the invention pertains.

Reference may be had to the accompanying drawings forming a part of thisspecification in which;

Figure 1 is a side elevation of a vacuum cleaner to which the device ofthe present invention is applied. a portion of the dirt collectingchamber being 'broken away to show the air conditioning device;

Fig. 2 is a fragmentary vertical section on an enlarged scale taken onthe line indicated at 27-2 in Fig. 1;

- Fig. 3 is a fragmentary vertical section taken on the line indicatedat 3-3 in Fig. 2;

Fig. 4 is a sectional view taken on the same line as Figure 3 with theabsorbent pad and the pad retaining plate removed;

Fig. 5 is a horizontal section taken on the line indicated at 5-5 inFig. 2 looking upwardly;

Fig. 6 is a perspective view of the retainer plate; and

Fig. rI is a perspective view of the absorbent pad.

In the accompanying drawings the invention is shown applied to a vacuumcleaner of a Well known type in which the cleaner is supported uponwheels I and comprises a suction nozzle 2, a fan casing 3 having anoutlet 4, a dirt collecting chamber 5 to which the outlet 4 delivers,

a detachable dirt receptacle 6 which forms the'k bottom of thecollecting chamber 5 and a lter bag 'I through which the air isdischarged after passing through the dirt collecting chamber.

The chamber 5 has an upright end wall 8 provided with a central lug 9 onits inner face. The lug 9 is integral with the wall 8 and has adownwardly facing shoulder I0. The wall 8 is provided with a passage IIthat opens to the shoulder I0 through which liquid may be introduced tothe interior of the chamber, the upper end of the passage II which opensto the exterior of the chamber being closed by detachable screw plug I2.The chamber 5 has side walls I3 disposed substantially at right anglesto the endwall 8 and each of the walls I3 has a-vertical rib I4 at ashort distance from the wall 8. A retaining plate I5 is retained betweenthe ribs I4 and the wall 8, the plate I5 having a supporting flange I 6at its lower end which has an upturned edge portion I'I that is adaptedto bear against the interior of the wall 8. The plate l5 is adapted tobe slid upwardly into the space between the ribs I4 and the end wall 8of the chamber when the receptacle 6 is detached and when in placewithin the chamber the end edges of the plate I5 engage the outer facesof the ribs I4 and the central portion of the plate adjacent its upperedge engages the interior of the lug 9. The plate- I5 is positioned inthe chamber 5 by engagement of its ange I6 with the'lower ends of theribs I 4 and by engagement of its upper edge with lugs I8 integral withthe wall 8.

A substantially at pad I9 of absorbent materia] is held against the endwall 8 of the dust collecting chamber by the retaining plate I5, thebottom edge of the pad resting on the flange I6 and the upper edge ofthe pad being positioned immediately below the shoulder I8 so thatliquid introduced through the passage II ows into the absorbent pad andis distributed to all parts of the pad. The wall 8 of the container ispreferably bowed outwardly slightly intermediate the ends thereof sothat a somewhat wider space is provided between the retaining plate I5and the wall adjacent the center of the Wall and the pad I9 is of athickness such thatA it is compressed between the end portions of theplate I5 and the wall 8 so that the pad and retainer plate are securelyheld in place by friction. The retainer plate I5 is a perforated platehaving openings 20 distributed substantially throughout the height andWidth of the pad so as to expose a portion of the inner face of the padto the air within the dirt receptacle. The pad is charged with a vola- 3tile liquid disinfectant and/or deodorant that is introduced through thepassage Il. Sufficient liquid is preferably maintained in the pad tocondition the air within the dirt collecting chamber during periods whenthe cleaner is idle as well as when the cleaner is in operation. Duringoperation of the cleaner a large volume of air will be delivredby.ther-fan intotireedirt coli-i1 looting chamber andA discharged throughthe filter bag connected to the top of the collecting chamber, and theevaporation of liquid from thf absorbent pad is at a relatively highrate sofasr to effectively disinfect and/or deodorize the air`v passingthrough the dirt collectirgJ-fchambenand filter. By reason of thefactth'atth'e disinfectant and/or deodorant is delivered into the dustcar'-Vr rying air stream, the dust deposited inthecolelection chamberWill have been subjected to the action of the conditioning material sothatlthere is less danger of noxious fumes being released whenf-'thedirtreceptacle-lis 1 emptied-.a5 Alsof, .thes.. dust lco'llecting'Ichamberis :in lxzommurnicatio'n f \vi-th1-fthe.imite'rf` 'airthrough.;the-.fsuctionfinozzle:e and fanflchamberfduring;periodsfzwhenf: the cleaner is'not'liniuse'anditheivolatileiairrconditioning' liquid 1in# the pad il 9v serveslto condition f the `air fwithin the ichamberliS fduringi periodsf whenthe-cleaner-zis notiinfuse'so"- astoffprevent the issuance"off-disagreeable :fodors for :contami` natedI air- 'from ther:chamberstolthef. surrounding atmosphere.'

It'is ltobe undei'stdod-fthatlin'. accordancefwith 'i' the provisions ffofzthe. patent statutesfvariations andrmcdinoationsf: orffth specificidevices herein.-

parting from-tne:spiritloftheinvention:

What I claim is'f l. In-ia lva'cuiinicleaneri'a' dusticollecting`chambiv provided xvit'lif-Tanl4 siriletfforl dustI flad'enr air and-an4fair outletlandhaving. a Wall:provided:- Witha passages npeningmtoftneAchamberf-through which i .liquid may zbe #introduced:Y 1 into"` theffchamr# berf'intermediate?ithefinlet 'and outlet; a pad-f of absorbentvmaterial .within .said chamber and hav-Y ingia "portion of its fsurfaceexposed:- to ,the air Within "said"chamber?` and- -a retainer-S for"holding said pad against-f1 saidflwall` viii" position ltoffcove'rVth'epassage opening and-receive liquid-delivered th'rough'said passage;1

2L 'In `a va ouumf cleaner: a dust `collecting. cham; berspro'videdf`withf an1i inlet :for dust laden f air and f an air outlet-#andi`ha-ving" an upright\-wall. provided with a dovvnx'vardly`facingeintennal. shoulderand withfa passage 4through vvhionliquid may?,berintroduced fthat :opens .to the f interiori.

of the i chamber through. saidyshouldeiz andea pa'd roi absorbentYmaterial secured `tom said-.walif anda having Y a portionn positionedbeneath@said, shouldento vreceive liduidintroduced,througlrsaidpassage:`

3. Ina vacuum ycleanerfa dustfcollecting chamg. ben "provided fwthf.inlet fior. dust: :ladenr air: and ans air voutlet -andf :having anfuprighti. wall1 provided wwith a f-downwardlyfacingainternali. shoulderandrx'vith a lpassage through which-liquid may be introduced that opensto the interior of the chamber through said shoulder, and asubstantially flat pad of absorbent material secured against theinterior of said Wall with its top edge beneath and adjacent saidshoulder to receive liquid introduced through said passage.

4. In a vacuum cleaner a dust collecting chamber having ,arr uprightwallprovid'ed with a downwardly facing internal shoulderand with apassage through which liquid may be introduced that opens to theinterior of the chamber through said-shoulder, a pad of absorbentmaterial positioned against said wall and beneath saidshoulderitoreceive iliquidlntroduced through said *passage-,ond aretainer for said pad comprising to .thefinterior .cfofi tithe @chambersthrough:vsafid:`

" shoulder, 'each isidexwalll having arr uprightwrihlf near said endwall, a perforated retaining :plate-i havingA --oppo'site'edge Jportions:idisposedfi-between 'plate and; "said: end 'walflgasaid padv rloeing,disposed-1 beneath saidzslioulderto receive liquid introduced` throughsaid passage. f 6. In' a vacuum .cleanera dustzcollecting chains.-

ber having upright''side :'Walls :and r 'an .'upright.-

end Wall provided with an interior centrallydise'.:

posed llug having a-dovvnwardly ifacingsshoulder, said endivall"lhavingfY a passage-#for "liquid fopevnr ing tothe interiornf saidChambon through said shoulder, each 'sideuvall '.'liavin'g` an: upright-Tribe` near said end wall, a periorated'iretaining.p1ateL havinglopposite 'edgeiportions: disposed-between said --rib's and endlivvalland-farisupportingcfiangm along its bottom edge-'thatprojectsa'toward--saidt end Wall, and-.a padofxabsorbent'materiahexwtending substantiallythe-'fuliiiwidthf-.of said end wallV and clampedlbetween.rsaidv'retaining plate and said end wall,saidpadfiiiavingitsfbottomf edge. resting on.' 'said-` iiangef.' and:itslfftopc'edge beneath'said-shoulderto receive Aliquid introducedVthrough said passage.

CHARLES'H; MACFARLA'ND:

REFERENCES* CI'iPEDf4 The following references arcioff-ie'cord'inzxtheuf file of this patent:

UNITED STATES PAL'IENYI'S Number Name Date. i

1,527,224" Riordan.` Feb.24, 1925 1,847,233 Bilde:A Mar.t1,.1932.1,863,883A Schneider; -..June-21,1932 1,891,256 Bilder; Dec.20,il932`1,954,924 Engberg et: 'al-.1..- Apr."17,493.4t 2,188,428f Evans-f.Jan..-.30, 1940 2,310,118' Reinhardt? Feb;1.2,.-1943f

